Abstract Local clay mineral was mined from Okpella Town, Etsako Government Area of Edo State, Nigeria. Mineralogical characterization the carried out using X-ray diffraction analyzer. Chemical fluorescence analyzer and pH analysis meter. The mineralogical revealed that majorly a dolomite having 72% dolomite. impurities present are 18% cristobalite, 4.1% garnet, 5% calcite 1% quicklime. acidic a...

Different ancient mortar samples of Pamplona Cathedral have been analyzed to characterize their binder and aggregate fractions. A complete characterization has been carried out including chemical (complete macrochemical analysis, analysis of the soluble fraction in hot HCl (1:5) and of the insoluble residue, trace elements and soluble salts, using traditional chemical procedures, ion chromatogr...

-A new chemical mass balance technique has been developed for simultaneous mineralogical quantification and chemical characterization of soil clays. The procedure includes separation of the whole clay (<2 ~tm fraction) into six particle size fractions (<0.02, <0.06, <0.2, 0.02-0.06, 0.06-0.2, and 0.22 um fractions), chemical analysis of the whole clay and each of the six fractions, and fitting ...

Next-generation planetary exploration rovers will soon be able to travel long distances in a single-communication cycle. This offers an enormous opportunity but also an important challenge: robots will need to do science autonomously and understand collected data in order to make more effective exploration decisions. We have developed a system to obtain spectroscopic measurements on-the-fly, po...

Mineralogical and chemical analyses of three textural varieties of pyrophyllite samples collected from Baliadihi mine of Keonjhar district, Orissa, India are investigated. Mineralogically they consist of quartz, pyrophyllite, altered feldspar as major minerals and muscovite, chlorite, tourmaline, hematite etc. as minor minerals. The samples exhibit compositional variation of SiO2 65.56 71.66%, ...

Surface samples have been collected from Kerala coast, Valapatanam-Azhikode deposit of northern Kerala coast. The average heavy minerals percentage shows 30.32 %. The heavy mineral assemblage of samples from area showed an appreciable percentage of opaque followed by sillimanite and zircon. The chemical analysis carried out for the present investigation, is detailed as Ferrian ilmenite. X-ray d...

Abstract The impact origin of the Early Cretaceous (140.82 ± 0.51 Ma) 20‐km diameter Dellen structure was proven in late 60s based on discovery planar deformation features (PDFs) quartz grains. Although decades have passed, impactites found from crater not received much attention. Thus, this study provides a detailed petrological and mineralogical description Dellen. Impactites were classified ...